Supplemental rear gun sight



munrw MJH & ngmi wg 33-259, (UR 295460777 5R March 27, 1951 E. PIERCE2,546,777

SUPPLEMENTAL REAR GUN SIGHT Filed July 24, 1950 Abel E Pierce INVENTORBY m Patented Mar. 27, 1951 UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to a eep sight adapted to be associated with theconventional rear notched sight of a gun to supplement the latter andprovide for quicker and easier sighting of a target.

An object of the invention is to provide a subplemental peep sight ofthe above kind adapted to be readily positioned and secured in operativerelation to a vertically adjustable rear gun sight Of the type embodyinga spring leaf attached at its front end to the gun barrel and providedat its rear end with an upstanding notched sight piece.

Another object is to provide a simple and efficient supplemental sightof the above kind which is adapted to be associated with theconventional gun sight so as to provide a peep sight piece directlybehind the notched sight piece of said conventional sight, as well as tounderlie said notched sight piece, whereby vertical adjustment of thesupplemental sight will cause corresponding adjustment of theconventional sight.

Other objects and features of the invention will appear from thefollowing description when considered with the accompanying drawing, inwhich:

Figure 1 is a fragmentary side elevational view of a gun having asupplemental peep sight embodying the present invention operativelyassociated with the conventional notched rear sight thereof;

Figure 2 is an enlarged fragmentary view thereof, partly in sideelevation and partly in central longitudinal section;

Figure 3 is an enlarged transverse section taken on the line 3-3 ofFigure 1;

Figure4 is a transverse section taken on the line 4-4 of Figure 2;

Figure 5 is a transverse section taken on the line 5-5 of Figure 2;

Figure 6 is a view similar to Figure 5, showing the supplemental sightadjusted upwardly; and,

Figure, '7 is an enlarged perspective view of the supplemental sight,per se.

Referring in detail to the drawing, 5 indicates a gun barrel equippedwith a conventional vertically adjustable rear sight of the typegenerally disclosed in the U. S. patent to C. A. Nelson, No. 1,464,615,August 14, 1923, with the elevator or wedge adjusting member omitted orremoved. This conventional sight includes a spring leaf 6 having itsfront end attached at I to the barrel 5 and provided at its rear endwith an upstanding notched sight piece 8 whose sides project beyond thesides of the leaf 6 to provide bottom 2 shoulders 9. The leaf 6 has acentral longitudinal slot In in its rear portion to receive the usualnotched elevator or wedge member (not shown) by means of which the sightpiece 8 is ordinarily adjusted vertically.

The illustrated embodiment of the present supplemental sight includes asight piece composed of a base block ll having a longitudinal groove l 2of arcuate cross-section in the top thereof and provided at the backwith an integral upstanding plate member 13 having a peep hole [4 whoselower portion coincides with the groove I2.

Spaced parallel legs I5 are integral with and project forwardly from thebottom of the block II, and transverse notches it are provided in topsof the rear ends of the legs IS. The forward ends of the legs l5 areconnected by a bridge member I! in the form of a substantially c-shapedclip having its ends tightly clinched under said legs and formedintermediate its ends and between said legs with a depressed teat l8.The block I I has a vertical central threaded opening [9 therethrough inwhich is screwed an adjusting screw 20.

The supplemental sight is installed by sliding the legs [5 forwardlyunder the sight piece 8 until the shoulders 9 of the latter seat in thenotches 16 of legs l5 and the block I I abuts the rear side of saidsight piece 8, the spring leaf 6 being snugly received between said legsi5 and the block H being seated upon the barrel 5 between the sightpiece -8 and the breech 2| of the gun. The clip I! is then applied sothat the leaf 6 is held thereby between the front end portions of thelegs IS, the teat l8 projecting into the slot 10 of leaf 6. By threadingthe screw 20 downwardly, it engages the barrel 5 and jacks the block llupwardly to flex the leaf 6 and adjust the sight piece of the auxiliarysight upwardly, as well as to correspondingly adjust the notched sightpiece 8. By turning the screw 20 in a reverse direction, the sightpieces are allowed to lower under the action of the spring leaf 6. Thelowering of the sight pieces is partly limited by engagement of the endsof clip I! with the barrel 5. The plate [3 of the peep sight piece isclose to the sight piece 8, and the groove I2 and hole [4 are registeredwith the notch of said sight piece 8. Thus, the sight pieces are jointlyused to promote easier and quicker sighting of a target.

What is claimed as new is:

1. In combination with a gun barrel, and a conventional notched rearsight including a spring leaf attached at its front end to said barreland having an upstanding notched sight piece at its rear end, asupplemental sight including a peep sight piece having a peep holealined with the notch of said notched sight piece and disposed behindand abutting the latter, and spaced parallel legs rigid with andprojecting forwardly from the peep sight piece under said notched sightpiece and at opposite sides of said spring leaf.

2. In combination with a gun barrel, and a conventional notched rearsight including a spring leaf attached at its front end to said barreland having an upstanding notched sight piece at its rear end, asupplemental sight including a peep sight piece having a peep holealined with the notch of said notched sight piece and disposed behindand abutting the latter, and spaced parallel legs rigid with andprojecting forwardly from the peep sight piece under said notched sightpiece and at opposite sides of said spring leaf, said legs havingnotches in which the notched sight piece is seated, and means carried bysaid peep sight piece for vertically adjusting the latter and thenotched sight piece.

3. In combination with a gun barrel, and a conventional notched rearsight including a spring leaf attached at its front end to said barreland having an upstanding notched sight piece at its rear end, asupplemental sight including a peep sight piece having apeep hole alinedwith the notch of said notched sight piece and disposed behind andabutting the latter, and spaced parallel legs rigid with and projectingforwardly from the peep sight piece under said notched sight piece andat opposite sides of said spring leaf, and a bridge member connectingthe front ends of said legs and overlying said spring leaf.

4. In combination with a gun barrel, and a conventional notched rearsight including a spring leaf attached at its front end to said barre]and having an upstanding notched sight piece at its rear end, asupplemental sight including a peep sight piece having a peep holealined with the notch of said notched sight piece and disposed behindand abutting the latter, and spaced parallel legs rigid with andprojecting forwardly from the peep sight piece under said notched sightpiece and at opposite sides of said spring leaf, and a bridge memberconnecting the front ends of said legs and overlying said spring leaf,said spring leaf having a longitudinal slot, said bridge member having adepressed teat engaged :in said slot.

5. In combination with a gun barrel, and a conventional notched rearsight including a spring leaf attached at its front end to said barreland having an upstanding notched sight piece at its rear end, asupplemental sight including a peep sight piece having a peep holealined with the notch of said notched sight piece and disposed behindand abuttin the latter, and spaced parallel legs rigid with andprojecting forwardly from the peep sight piece under said notched sightpiece and at opposite sides of said spring leaf, said peep sight piececomprising a block having a longitudinal groove of arcuate crosssectionin the top thereof and provided at the back with an upstanding platemember formed with said peep hole, said groove coinciding with the lowerportion of said peep hole.

, ABEL E. PIERCE.

No references cited.

